{"id":608855,"date":"2025-12-19T04:56:17","date_gmt":"2025-12-19T04:56:17","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/608855\/"},"modified":"2025-12-19T04:56:17","modified_gmt":"2025-12-19T04:56:17","slug":"une-vaste-couche-de-glace-chaude-ideale-pour-le-developpement-de-la-vie-cachee-dans-les-entrailles-de-titan","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/608855\/","title":{"rendered":"Une vaste couche de glace \u00abchaude\u00bb, id\u00e9ale pour le d\u00e9veloppement de la vie, cach\u00e9e dans les entrailles de Titan"},"content":{"rendered":"<p>\n    <strong>D\u00c9CRYPTAGE &#8211; <\/strong>Contrairement \u00e0 ce que pensaient les scientifiques, le satellite de Saturne n\u2019abriterait pas d\u2019oc\u00e9an global souterrain, mais un m\u00e9lange d\u2019eau liquide et de glace \u00abchaude\u00bb \u00e0 des temp\u00e9ratures comprises entre 5\u00b0C et 20\u00b0C.<\/p>\n<p class=\"fig-paragraph\">Lanc\u00e9e en 1997 vers Saturne, la sonde Cassini n\u2019en est pas \u00e0 son premier scoop. Mais celui-ci est d\u2019autant plus fascinant qu\u2019il contredit les premi\u00e8res donn\u00e9es que l\u2019on avait et rend les missions futures encore plus excitantes. Selon les r\u00e9sultats de l\u2019\u00e9quipe de Flavio Petricca au JPL (le Jet Propulsion Laboratory, un centre de recherche spatiale de la NASA bas\u00e9 \u00e0 Pasadena, en Californie) et\u00a0<a href=\"https:\/\/www.nature.com\/articles\/s41586-025-09818-x\" target=\"_blank\" rel=\"sponsored noopener\" data-gtm-custom-categorie=\"navigation\" data-gtm-custom-action=\"crossclick\" data-gtm-custom-label=\"Contextuel\" data-gtm-event=\"customEventSPE\">publi\u00e9s dans la revue Nature<\/a>, le satellite de Saturne, Titan, n\u2019abriterait pas d\u2019oc\u00e9an liquide sous sa surface gel\u00e9e, mais plut\u00f4t une couche faite d\u2019un m\u00e9lange \u00e9trange de glace chaude \u00e0 haute pression et de poches d\u2019eau saum\u00e2tre. Des conditions physico\u2011chimiques particuli\u00e8rement exotiques qui pourraient pr\u00e9senter un environnement propice \u00e0 l\u2019apparition et au maintien de formes de vie, selon les scientifiques.<\/p>\n<p class=\"fig-paragraph\">\u00abDepuis une dizaine d\u2019ann\u00e9es, le JPL a d\u00e9velopp\u00e9 de nouvelles m\u00e9thodes d\u2019analyse des donn\u00e9es radio qui permettent de corriger bien plus finement le bruit instrumental, afin de mieux contraindre\u2026<\/p>\n<p class=\"fig-premium-paywall__infos\">\n        Cet article est r\u00e9serv\u00e9 aux abonn\u00e9s.        Il vous reste 81% \u00e0 d\u00e9couvrir.\n    <\/p>\n<p>                <img  data- alt=\"Le Figaro\" class=\"fig-img--complete fig-img\"\/><\/p>\n<p class=\"fig-premium-paywall__title\">Vous avez envie de lire la suite ?<\/p>\n<p class=\"fig-premium-paywall__subtitle\">D\u00e9bloquez tous les articles imm\u00e9diatement.<\/p>\n<p class=\"fig-premium-paywall__connect\">\n                D\u00e9j\u00e0 abonn\u00e9\u00a0?                <a class=\"fig-premium-paywall__connect-link\" href=\"https:\/\/connect.lefigaro.fr\/login?client=horizon_web&amp;type=main&amp;redirect_uri=https%3A%2F%2Fwww.lefigaro.fr%2Fsciences%2Fune-vaste-couche-de-glace-chaude-ideale-pour-le-developpement-de-la-vie-cachee-dans-les-entrailles-de-titan-20251218\" data-js-gtm=\"{&quot;customCategorie&quot;: &quot;conversion&quot;, &quot;customAction&quot;: &quot;before_Landing_Connexion_paywall_auto&quot;, &quot;customLabel&quot;: &quot;bGVmaWdhcm8uZnJfXzFmMGRiZWZkLTBiYWMtNmJmZS1hMWY1LWMzMmE4YmJlODEzOV9fQXJ0aWNsZQ==_Une vaste couche de glace \u00abchaude\u00bb, id\u00e9ale pour le d\u00e9veloppement de la vie, cach\u00e9e dans les entrailles de Titan_193&quot;, &quot;customIDSPE&quot;: &quot;bGVmaWdhcm8uZnJfXzFmMGRiZWZkLTBiYWMtNmJmZS1hMWY1LWMzMmE4YmJlODEzOV9fQXJ0aWNsZQ==&quot;, &quot;event&quot;: &quot;customEventSPE&quot;}\" target=\"_blank\" rel=\"noopener\"><br \/>\n                    Connectez-vous<br \/>\n                <\/a>\n            <\/p>\n","protected":false},"excerpt":{"rendered":"D\u00c9CRYPTAGE &#8211; Contrairement \u00e0 ce que pensaient les scientifiques, le satellite de Saturne n\u2019abriterait pas d\u2019oc\u00e9an global souterrain,&hellip;\n","protected":false},"author":2,"featured_media":608856,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[1011,27,18117,43,40,41,39,42,44],"class_list":{"0":"post-608855","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-sciences-et-technologies","8":"tag-fr","9":"tag-france","10":"tag-saturne","11":"tag-science","12":"tag-science-and-technology","13":"tag-sciences","14":"tag-sciences-et-technologies","15":"tag-technologies","16":"tag-technology"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/115744459071017348","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/608855","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/comments?post=608855"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/608855\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/608856"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=608855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=608855"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=608855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}